/*
 * Created on 13-Jul-2004
 * Created by Paul Gardner
 * Copyright (C) Azureus Software, Inc, All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */

package com.aelitis.azureus.core;

/**
 * @author parg
 *
 */

import com.aelitis.azureus.core.impl.AzureusCoreImpl;

public class AzureusCoreFactory {
    /**
     * Azureus core is a singleton that must be initially created by someone, and initialised
     * 
     * @return
     * @throws AzureusCoreException
     */

    public static AzureusCore create()

    throws AzureusCoreException {
        return (AzureusCoreImpl.create());
    }

    /**
     * Returns whether the core is available. All features of the core (such as GlobalManager) may not be available yet.
     * 
     * @return
     */
    public static boolean isCoreAvailable() {
        return (AzureusCoreImpl.isCoreAvailable());
    }

    /**
     * Returns whether the core is running. All features of the core (GlobalManager) should be available when the result is true.
     * 
     * @return
     */
    public static boolean isCoreRunning() {
        return AzureusCoreImpl.isCoreRunning();
    }

    /**
     * Once created the singleton can be accessed via this method
     * 
     * @return
     * @throws AzureusCoreException
     */

    public static AzureusCore getSingleton()

    throws AzureusCoreException {
        return (AzureusCoreImpl.getSingleton());
    }

    /**
     * Adds a listener that is triggered once the core is running.
     * <p>
     * This is in AzureusCoreFactory instead of {@link AzureusCoreLifecycleListener} so that listeners can be added before the core instance is even
     * created.
     * 
     * @param l
     *            Listener to trigger when the core is running. If the core is already running, listener is fired immediately
     */
    public static void addCoreRunningListener(AzureusCoreRunningListener l) {
        AzureusCoreImpl.addCoreRunningListener(l);
    }
}
